EXPERIMENTAL DETERMINATION OF THE DEPENDENCE OF SPEED OF THE DYE MASS-TRANSFER IN THE FLAT HORIZONTAL LAYER OF LIQUID ON THE LAYER THICKNESS AT VARIOUS BOUNDARY CONDITIONS

In our previous article we discovered convection in thin horizontal flat water layer when we put a drop of dye water solution. In this article authors present results of the research of dependence of mass-transfer speed on the layer thickness. Authors were able to reveal that the effective diffusivity coefficient is decreased proportionally to the layer thickness declining. Convective mass-transfer is almost eliminated at 0,5 mm-thick layer.